Eustachian Tube Dysfunction: This condition is characterized by the inability of the Eustachian tube to open and close properly, leading to a feeling of fullness or clogged ears, ear pain, and sometimes discomfort with loud sounds. It's a common issue that can be caused by various factors, including allergies, colds, or sinus infections, making it a likely diagnosis for a 35-year-old female presenting with these symptoms.

Middle Ear Infection (Otitis Media): An infection of the middle ear can cause ear pain, a feeling of fullness, and sometimes discomfort with loud noises. It's more common in children but can occur in adults, especially after an upper respiratory infection.
Earwax Impaction: Excessive earwax can cause a feeling of clogged ears, ear pain, and sometimes discomfort with loud sounds. It's a common condition that can be easily diagnosed and treated.
Sinusitis: Sinus infections can cause referred pain to the ears, a feeling of fullness, and sometimes discomfort with loud noises due to the shared Eustachian tube drainage pathway.

Acoustic Neuroma: A rare, benign tumor on the nerve connecting the inner ear to the brain. It can cause ear pain, hearing loss, and sometimes discomfort with loud sounds. Although rare, missing this diagnosis could lead to significant morbidity.
Temporal Bone Fracture: A fracture in the temporal bone can cause severe ear pain, hearing loss, and sometimes vertigo. It's crucial to consider this diagnosis, especially if there's a history of trauma.
Mastoiditis: An infection of the mastoid bone in the skull, which can cause severe ear pain, fever, and sometimes neurological symptoms. It's a serious condition that requires prompt treatment.

Meniere's Disease: A disorder of the inner ear that causes episodes of vertigo, ringing in the ears (tinnitus), hearing loss, and a feeling of fullness in the ear. It's less common and typically presents with a distinct set of vertigo episodes.
Otosclerosis: A condition in which there's abnormal bone growth in the middle ear, causing hearing loss and sometimes ear pain. It's a rare condition that can be diagnosed with a hearing test and sometimes requires surgical intervention.
Relapsing Polychondritis: A rare autoimmune disorder that can cause inflammation and damage to the cartilage in the ears, among other areas, leading to ear pain and sometimes hearing loss. It's a rare condition that would require a comprehensive diagnostic workup.